A 13 foot, bronze incense burner stands on tripod legs near the entrance of the Hall of Imperial Peace. Notice the bas-reliefs around the six openings for the smoke. They are a common visual at the Forbidden City of two dragons playing with a pearl. It was traditional for the emperor to burn incense while praying to the heavens at the start of each season. Several emperors also favored the smell of incense during their leisure time in the Imperial Garden.